CA1008957A - Step-by-step telephone central exchanges for use with pcm communication networks - Google Patents

Step-by-step telephone central exchanges for use with pcm communication networks

Info

Publication number
CA1008957A
CA1008957A CA190,479A CA190479A CA1008957A CA 1008957 A CA1008957 A CA 1008957A CA 190479 A CA190479 A CA 190479A CA 1008957 A CA1008957 A CA 1008957A
Authority
CA
Canada
Prior art keywords
communication networks
telephone central
pcm communication
central exchanges
exchanges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA190,479A
Inventor
Bernard J. Rekiere
Michael J. Kelly
Chungmin Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTE Automatic Electric Laboratories Inc
Original Assignee
GTE Automatic Electric Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GTE Automatic Electric Laboratories Inc filed Critical GTE Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of CA1008957A publication Critical patent/CA1008957A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
CA190,479A 1973-04-30 1974-01-18 Step-by-step telephone central exchanges for use with pcm communication networks Expired CA1008957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356003A US3863033A (en) 1973-04-30 1973-04-30 Step-by-step telephone central exchanges for use with pcm communication networks

Publications (1)

Publication Number Publication Date
CA1008957A true CA1008957A (en) 1977-04-19

Family

ID=23399677

Family Applications (1)

Application Number Title Priority Date Filing Date
CA190,479A Expired CA1008957A (en) 1973-04-30 1974-01-18 Step-by-step telephone central exchanges for use with pcm communication networks

Country Status (5)

Country Link
US (1) US3863033A (en)
BE (1) BE814367A (en)
CA (1) CA1008957A (en)
GB (1) GB1462649A (en)
IT (1) IT1010125B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984642A (en) * 1974-06-10 1976-10-05 The Post Office Digital telephone and switching system employing time division multiplex pulse code modulation
US4150258A (en) * 1975-02-03 1979-04-17 Oki Electric Industry Co., Ltd. Electronic switching system
FR2311468A1 (en) * 1975-05-16 1976-12-10 Thomson Csf METHOD OF PROTECTING A TELEPHONE SWITCHING NETWORK AGAINST OVERLOADS, CIRCUITS AND PABX SWITCHES FOR THE IMPLEMENTATION OF THIS PROCESS
US5099474A (en) * 1988-12-22 1992-03-24 Kabushiki Kaisha Toshiba Digital exchange and its control method
US5912960A (en) * 1996-05-17 1999-06-15 Alcatel Usa Sourcing, L.P. Method and apparatus for remotely activating services in a telecommunications network
US20050259807A1 (en) * 2003-02-28 2005-11-24 Pita Madoch Method and network for providing access to an information network

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA594682A (en) * 1954-05-27 1960-03-22 F. Dunning Sanford Telephone answering service
US2829204A (en) * 1954-11-26 1958-04-01 Bell Telephone Labor Inc Battery charging over subscriber telephone line
US3087019A (en) * 1960-03-30 1963-04-23 Automatic Elect Lab Terminal per station identification circuit
US3458659A (en) * 1965-09-15 1969-07-29 New North Electric Co Nonblocking pulse code modulation system having storage and gating means with common control
US3496301A (en) * 1966-04-19 1970-02-17 Bell Telephone Labor Inc Time division concentrator with reduced station scanning interval
US3585306A (en) * 1968-05-16 1971-06-15 Bell Telephone Labor Inc Tandem office time division switching system
US3778555A (en) * 1971-07-19 1973-12-11 Digital Telephone Systems Inc Telephone subscriber line system intra call apparatus and method

Also Published As

Publication number Publication date
IT1010125B (en) 1977-01-10
GB1462649A (en) 1977-01-26
BE814367A (en) 1974-10-30
US3863033A (en) 1975-01-28

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